CN107077932A - Rotating type adjustable resistor and its manufacture method - Google Patents
Rotating type adjustable resistor and its manufacture method Download PDFInfo
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- CN107077932A CN107077932A CN201580058296.5A CN201580058296A CN107077932A CN 107077932 A CN107077932 A CN 107077932A CN 201580058296 A CN201580058296 A CN 201580058296A CN 107077932 A CN107077932 A CN 107077932A
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- pattern
- resistive element
- element pattern
- insulated substrate
- rotating type
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C10/00—Adjustable resistors
- H01C10/30—Adjustable resistors the contact sliding along resistive element
- H01C10/32—Adjustable resistors the contact sliding along resistive element the contact moving in an arcuate path
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
- H01C1/142—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors the terminals or tapping points being coated on the resistive element
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
- H01C17/06—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base
- H01C17/065—Apparatus or processes specially adapted for manufacturing resistors adapted for coating resistive material on a base by thick film techniques, e.g. serigraphy
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/01—Mounting; Supporting
Abstract
Rotating type adjustable resistor possesses：Insulated substrate；Resistive element pattern and collector pattern, are arranged on insulated substrate；Revolving part, is revolvably installed on insulated substrate；And sliding part, revolving part is installed in, with resistive element pattern and collector pattern sliding contact, resistive element pattern and collector pattern are turned on.Z [mm] will be set to as the effective full-size of the variable resistor of resistive element pattern, when electric linearity is set into L [%], meeting Z≤4.0 and Z × L ＜ 10.
Description
Technical field
The present invention relates to rotating type adjustable resistor and its manufacture method.
Background technology
In the past, as rotating type adjustable resistor, there is note in Japanese Unexamined Patent Publication 2-170403 publications (patent document 1)
The rotating type adjustable resistor of load.The rotating type adjustable resistor has：Resin film；It is arranged on the resistance on resin film
Body pattern and collector pattern；With the sliding part with resistive element pattern and collector pattern sliding contact.Resistive element pattern
And collector pattern is printed on resin film.
Citation
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2-170403 publications
The content of the invention
- the invention problem to be solved-
But, in the existing rotating type adjustable resistor, if being minimized, electric linearity (linearity)
It may deteriorate.The reason is studied, due to causing the size of resistive element pattern to diminish by carrying out miniaturization, therefore resistive element pattern
The influence of deviation of thickness become big, electric linearity deteriorates.If specifically, it is known that form resistive element pattern by printing,
Then the deterioration of electric linearity becomes notable.
Therefore, problem of the invention be there is provided it is a kind of can realize miniaturization and high precision int get both it is rotary-type
Variable resistance and its manufacture method.
- means to solve the problem-
The rotating type adjustable resistor of the present invention possesses：
Insulated substrate；
Resistive element pattern and collector pattern, are arranged on the insulated substrate, and by mutually isolated configuration；
Revolving part, is revolvably installed on the insulated substrate；With
Sliding part, is installed in the revolving part and enables to rotate jointly with the revolving part, with the resistive element
Pattern and the collector pattern sliding contact, the resistive element pattern and the collector pattern are turned on,
The effective full-size of variable resistor as the resistive element pattern is being set to Z [mm], by electric linearity
When being set to L [%], Z≤4.0 and Z × L ＜ 10 are met.
Here, the full-size Z of so-called resistive element pattern is straight when for example referring to the profile of resistive element pattern for circle
Footpath, the long side when profile of resistive element pattern is rectangle.So-called electric linearity L, refer to the anglec of rotation in revolving part with
Output voltage than relation in, the output voltage of actual measurement is than the maximum perpendicular deviation apart from ideal line.
According to the rotating type adjustable resistor of the present invention, due to meeting Z≤4.0, therefore, it is possible to make rotary-type variable resistor
Device is minimized.Due to meeting Z × L ＜ 10, therefore, it is possible to improve electric linearity.Therefore, it is possible to realize miniaturization and high accuracy
That changes gets both.
In addition, in the rotating type adjustable resistor of an embodiment, the resistive element pattern and the collector figure
Case is configured by carrying out silk-screen printing on the insulated substrate.
According to the rotating type adjustable resistor of the embodiment, resistive element pattern and collector pattern pass through in insulation
Silk-screen printing is carried out on substrate and is configured.Therefore, use is most cheap and efficient silk-screen printing, can realize low cost.
In addition, the rotating type adjustable resistor of the present invention possesses：
Insulated substrate；
Resistive element pattern and collector pattern, are arranged on the insulated substrate, and by mutually isolated configuration；
Revolving part, is revolvably installed on the insulated substrate；With
Sliding part, is installed in the revolving part and enables to rotate jointly with the revolving part, with the resistive element
Pattern and the collector pattern sliding contact, the resistive element pattern and the collector pattern are turned on,
The resistive element pattern is configured by carrying out silk-screen printing on the 1st direction on the insulated substrate,
Pass through the resistive element on the 1st straight line of rotary shaft parallel and by the revolving part with the 1st direction
In pattern the midpoint of the width of the maximum side of the length in the direction orthogonal with the 1st direction and with the 1st straight line just
The section of friendship, t1 is being set to by the thickness of central portion, when maximum film thickness is set into t2, meets 1.0≤(t2/t1) ＜ 1.2.
Here, so-called 1st direction, refers to print direction, refers to the direction for conveying paste by scraper on wire mesh membrane.
According to the rotating type adjustable resistor of the present invention, due to meeting 1.0≤(t2/t1) ＜ 1.2, therefore resistive element pattern
The deviation of thickness diminish, it is possible to increase electric linearity.Therefore, also can be real in small-sized rotating type adjustable resistor
Existing high precision int.
Further, since resistive element pattern is configured on insulated substrate by silk-screen printing, thus using most it is cheap simultaneously
And efficient silk-screen printing, low cost can be realized.
In addition, in the rotating type adjustable resistor of an embodiment, using as the resistive element pattern can power transformation
Hinder effective full-size and be set to Z [mm], when electric linearity is set into L [%], meet Z≤4.0 and Z × L ＜ 10.
According to the rotating type adjustable resistor of the embodiment, due to meeting Z≤4.0, therefore, it is possible to make it is rotary-type can
Variohm is minimized.Due to meeting Z × L ＜ 10, therefore, it is possible to improve electric linearity.Therefore, it is possible to realize miniaturization and
High precision int gets both.
In addition, in the rotating type adjustable resistor of an embodiment, the resistive element pattern and the collector figure
Case is constructed from the same material.
According to the rotating type adjustable resistor of the embodiment, because resistive element pattern and collector pattern are by identical
Material is constituted, therefore, it is possible to realize low cost.
In addition, in the rotating type adjustable resistor of an embodiment,
Have：
Expose electrode, be arranged in the insulated substrate, expose from the insulated substrate；With
Electrode pattern, is arranged on the insulated substrate, positioned at the resistive element pattern and it is described expose between electrode,
The resistive element pattern and described expose electrode via the electrode pattern to turn on.
According to the rotating type adjustable resistor of the embodiment, resistive element pattern comes with electrode is exposed via electrode pattern
Conducting.Thus, in resistive element pattern and expose in the case that electrode is difficult to directly turn on, by via electrode pattern, resistance
Body pattern can be turned on indirectly with exposing electrode, it can be ensured that higher reliability.
In addition, in the rotating type adjustable resistor of an embodiment,
The revolving part has：
The main part being made up of resin；With
The metal parts of the main part is fixed in,
The sliding part is installed in the revolving part with being limited to the metal parts.
According to the rotating type adjustable resistor of the embodiment, the gold of main part is fixed on because sliding part is limited to
Belong to part, be installed in revolving part, therefore the generation of the click of the sliding part based on reflux solder heat and revolving part tails off.By
This, in the absence of sliding part to resistive element pattern and the contact pressure of collector pattern variation, can obtain resistive element pattern with
And the contact with the stabilization of sliding part of collector pattern.
In addition, in the rotating type adjustable resistor of an embodiment, the riveting that the sliding part passes through the metal parts
Connect, be limited to the metal parts.
According to the rotating type adjustable resistor of the embodiment, due to sliding part by the riveting of metal parts by card
Metal parts is terminated in, therefore, it is possible to which sliding part easily is installed on into revolving part.
In addition, in the rotating type adjustable resistor of an embodiment, the metal parts is fixed by insert molding
In the main part.
According to the rotating type adjustable resistor of the embodiment, because metal parts is fixed in by insert molding
Main part, therefore, it is possible to which metal parts easily is fixed on into main part.
In addition, the manufacture method of the rotating type adjustable resistor of the present invention possesses：
Wire mesh membrane arrangement step, by the wire mesh membrane with the hole portion corresponding to resistive element pattern and collector pattern exhausted
Configured at spaced intervals on edge substrate；
Paste loads process, and paste is loaded on the wire mesh membrane；With
Pattern formation process, the wire mesh membrane is extruded by scraper and defeated on the 1st direction on the wire mesh membrane
The paste is sent, thus extrudes the paste from the hole portion of the wire mesh membrane, forms described on the insulated substrate
Resistive element pattern and the collector pattern,
In the pattern formation process, the wire mesh membrane is extruded by the scraper to cause the wire mesh membrane and institute
Insulated substrate contact is stated, and forms on the insulated substrate resistive element pattern and the collector pattern.
According to the manufacture method of the rotating type adjustable resistor of the present invention, in pattern formation process, squeezed by scraper
Silk pressing nethike embrane is to cause wire mesh membrane to be contacted with insulated substrate, and formation resistive element pattern and collector figure on insulated substrate
Case.So, due to being fully pressed into wire mesh membrane by scraper and resistive element pattern and collector pattern are printed,
Therefore, it is possible to control the thickness of resistive element pattern and collector pattern by the thickness of the hole portion of wire mesh membrane.Therefore, it is possible to
With the opening of the hole portion of wire mesh membrane independently from the size, make the thickness of resistive element pattern and collector pattern substantially certain.Cause
This, the deviation of the thickness of resistive element pattern diminishes, it is possible to increase electric linearity.Therefore, it is small-sized rotary-type even in manufacturing
In the case of variable resistance, high precision int can be also realized.
- invention effect-
According to the rotating type adjustable resistor of the present invention, it can realize that miniaturization and high precision int get both.
According to the manufacture method of the rotating type adjustable resistor of the present invention, satisfaction miniaturization and high precision int can be manufactured
Rotating type adjustable resistor.
Brief description of the drawings
Fig. 1 is the stereogram for the rotating type adjustable resistor for representing the 1st embodiment of the present invention.
Fig. 2A is the exploded perspective view from the lower section of the rotating type adjustable resistor of the present invention.
Fig. 2 B are the exploded perspective views from the top of the rotating type adjustable resistor of the present invention.
Fig. 3 is the state for representing to eliminate the cap, revolving part and sliding part of the rotating type adjustable resistor of the present invention
Top view.
Fig. 4 is the explanation figure that the action to the rotating type adjustable resistor of the present invention is illustrated.
Fig. 5 is the output voltage for representing the present invention than the figure with the relation of the anglec of rotation.
Fig. 6 is the sectional view of the plane orthogonal with the 1st direction at the top of the rotating type adjustable resistor of the present invention.
Fig. 7 A are the explanation figures illustrated to the manufacture method of the rotating type adjustable resistor of the present invention.
Fig. 7 B are the explanation figures illustrated to the manufacture method of the rotating type adjustable resistor of the present invention.
Fig. 7 C are the explanation figures illustrated to the manufacture method of the rotating type adjustable resistor of the present invention.
Fig. 8 A are the explanation figures illustrated to the manufacture method at the top of resistive element pattern of the invention.
Fig. 8 B are the explanation figures illustrated to the manufacture method at the top of resistive element pattern of the invention.
Fig. 9 A are the explanation figures illustrated to the manufacture method of the sidepiece of resistive element pattern of the invention.
Fig. 9 B are the explanation figures illustrated to the manufacture method of the sidepiece of resistive element pattern of the invention.
Figure 10 A are the explanation figures illustrated to the manufacture method at the top of existing resistive element pattern.
Figure 10 B are the explanation figures illustrated to the manufacture method at the top of existing resistive element pattern.
Figure 11 A are the explanation figures illustrated to the manufacture method of the sidepiece of existing resistive element pattern.
Figure 11 B are the explanation figures illustrated to the manufacture method of the sidepiece of existing resistive element pattern.
Figure 12 A are the figures of the thickness at the top for representing the resistive element pattern of the present invention.
Figure 12 B are the figures of the thickness at the top for representing existing resistive element pattern.
Figure 13 is the figure of the thickness for the radial direction for representing of the invention and existing resistive element pattern.
Figure 14 is the revolving part and the top view observed from below of sliding part for representing the 2nd embodiment of the present invention.
Figure 15 A are the explanation figures illustrated to sliding part to the fixing means of revolving part.
Figure 15 B are the explanation figures illustrated to sliding part to the fixing means of revolving part.
Figure 16 is the revolving part and the top view observed from below of sliding part for representing the 3rd embodiment of the present invention.
Figure 17 is the side view for representing revolving part and sliding part.
Figure 18 is the top view for representing the state by revolving part and sliding part decomposition.
Figure 19 A are the explanation figures illustrated to sliding part to the fixing means of revolving part.
Figure 19 B are the explanation figures illustrated to sliding part to the fixing means of revolving part.
Embodiment
Hereinafter, the present invention is described in detail by embodiment illustrated.
(the 1st embodiment)
Fig. 1 is the stereogram for the rotating type adjustable resistor for representing one embodiment of the present invention.Fig. 2A is from rotary-type
The exploded perspective view of the lower section observation of variable resistance.Fig. 2 B are the exploded perspectives from the top of rotating type adjustable resistor
Figure.
As shown in Figure 1, Figure 2 shown in A and Fig. 2 B, rotating type adjustable resistor 1 has：Insulated substrate 2, it is arranged on insulated substrate 2
On resistive element pattern 5 and collector pattern 6, be rotatably mounted in the revolving part 3 of insulated substrate 2 and be installed in rotation
Turn the sliding part 4 that part 3 enables to rotate jointly with revolving part 3.
In insulated substrate 2, the 1st terminal, the 2nd terminal and the 3rd terminal 11,12,13 are set.1st terminal 11, which has, to be set
That exposes in insulated substrate 2 and from insulated substrate 2 exposes electrode 11a.Similarly, the 2nd terminal 12, which has, exposes electrode
12a, the 3rd terminal 13, which has, exposes electrode 13a.
On insulated substrate 2, electrode pattern 7 is set.Electrode pattern 7 be located at resistive element pattern 5 and collector pattern 6 with
Expose between electrode 11a, 12a, 13a.Resistive element pattern 5 and collector pattern 6 and expose electrode 11a, 12a, 13a via electricity
Pole figure case 7 is turned on.So, resistive element pattern 5 and expose electrode 11a, 12a, 13a be difficult to directly conducting in the case of, lead to
Cross via electrode pattern 7, so that resistive element pattern 5 can be turned on indirectly with exposing electrode 11a, 12a, 13a, can ensure that higher
Reliability.
In insulated substrate 2, cap 10 is detachably installed.The covering of cap 10 revolving part 3, sliding part 4, resistive element
Pattern 5, collector pattern 6 and electrode pattern 7.
Fig. 3 is to represent to eliminate bowing for the state of the cap 10 of rotating type adjustable resistor 1, revolving part 3 and sliding part 4
View.As shown in Fig. 2A, Fig. 2 B and Fig. 3, insulated substrate 2 is rectangular shape under vertical view.In insulated substrate 2, hole portion 21 is set.
In the hole portion 21 of insulated substrate 2, the jut 31 of revolving part 3 is embedded into.Revolving part 3 is rotated centered on rotary shaft C.Insulation
Substrate 2 and revolving part 3 are for example made up of resin.
Resistive element pattern 5 and collector pattern 6 are by mutually isolated configuration.Resistive element pattern 5 be by using rotary shaft C in
The ring-type of the heart cuts the shape of a part.Resistive element pattern 5 has the 1st end 51 and the 2nd end 52.Collector pattern 6 be with
Ring-type centered on rotary shaft C.Collector pattern 6 is located at the inner side of resistive element pattern 5.Resistive element pattern 5 and collector figure
Case 6 is constructed from the same material, for example, being made up of the material that carbon black has been immersed to phenolic aldehyde system resin.
Sliding part 4 is mounted and is positioned at the jut 31 and 2 juts 32 of revolving part 3.Sliding part 4 is substantially formed
For ring-type.Sliding part 4 has the 1st jut 41 and the 2nd jut 42.1st jut 41 is turned on the 2nd jut 42.Slide
Part 4 and resistive element pattern 5 and the sliding contact of collector pattern 6, resistive element pattern 5 and collector pattern 6 are turned on.In other words
Say, the 1st jut 41 and the sliding contact of resistive element pattern 5, the 2nd jut 42 and the sliding contact of collector pattern 6, resistive element figure
Case 5 and collector pattern 6 are switched on.Sliding part 4 is for example made up of metal.
Electrode pattern 7 has the 1st electrode portion 71, the 2nd electrode portion 72 and the 3rd electrode portion 73.1st electrode portion 71 and resistive element
The overlying contact of the 1st end 51 of pattern 5.2nd electrode portion 72 and the overlying contact of the 2nd end 52 of resistive element pattern 5.3rd electrode
Portion 73 is formed as ring-type.3rd electrode portion 73 and the overlying contact of collector pattern 6.Electrode pattern 7 is for example made up of metal.
A part for 1st terminal 11 and the 2nd terminal 12 is pulled out from the 1st side of insulated substrate 2.The one of 3rd terminal 13
Part by from be opposite to the 1st of insulated substrate 2 while the 2nd while pull out.1st terminal 11 exposes electrode 11a and the 1st electrode portion 71
Overlying contact.2nd terminal 12 exposes electrode 12a and the overlying contact of the 2nd electrode portion 72.3rd terminal 13 expose electrode 13a with
The overlying contact of 3rd electrode portion 73.1st terminal, the 2nd terminal and the 3rd terminal 11,12,13 are for example made up of metal.
1st end 51 of resistive element pattern 5 and the 1st terminal 11 expose electrode 11a via the 1st electrode portion 71 to turn on.
2nd end 52 of resistive element pattern 5 and the 2nd terminal 12 expose electrode 12a via the 2nd electrode portion 72 to turn on.Collector figure
Case 6 and the 3rd terminal 13 expose electrode 13a via the 3rd electrode portion 73 to turn on.
Fig. 4 is the explanation figure that the action to rotating type adjustable resistor 1 is illustrated.In Fig. 4, with simple shape table
Show sliding part 4.As shown in figure 4, applying certain voltage V between the 1st terminal 11 and the 2nd terminal 12cc.Pass through sliding part 4
Rotation, the voltage V between the 1st terminal 11 and the 3rd terminal 1313Change.In other words, according to the anglec of rotation of sliding part 4, voltage
V13Change.Also, by measuring voltage V13, can easily detect the anglec of rotation of sliding part 4 (revolving part 3).
In Fig. 4, centered on rotary shaft C, between the 1st end 51 and the 2nd end 52 in resistive element pattern 5
Heart position is set to 0 ° of angle.On the basis of 0 ° of angle, the anglec of rotation of the side of the 2nd end 52 is set on the occasion of general
The anglec of rotation of the side of 1st end 51 is set to negative value.In Fig. 4, negative value will be expressed as (-) on the occasion of being expressed as (+).
Fig. 5 is to represent output voltage than the figure with the relation of the anglec of rotation.The longitudinal axis represents output voltage ratio [%], transverse axis table
Show the anglec of rotation [°] of sliding part 4 (revolving part 3).Output voltage ratio is (V13/Vcc×100).As shown in figure 5, by ideal value
(shown in imaginary line) ideal line R is set to, measured value is set to (shown in solid) measured curve W.Ideal line R slope
E.g. 100 [%]/333.3 [°].Ideal line R and measured curve W is in 0 ° of intersection point with output voltage than 50% of the anglec of rotation
Overlap.
Measured curve W is referred to as electric linearity (linearity) L [%] from ideal line R maximum perpendicular deviation H.
Electric linearity L value is smaller, and linearity is better.Specifically, L=offsets/Vcc×100.So-called offset, refer to
The corresponding voltage differences of maximum perpendicular deviation H.In Figure 5, it is ensured that the scope of the electric linearity L anglec of rotation is more than -160 °
And less than+160 °.
As shown in figure 3, Z [mm] will be set to as the variable resistor of resistive element pattern 5 effective full-size.Full-size
Z refers to the full-size of the profile of resistive element pattern 5.The effective part of the so-called variable resistor as resistive element pattern 5, refers to
The part played a role among resistive element pattern 5 as resistive element, refer among resistive element pattern 5 not with electrode pattern 71,
72 parts overlapped.The full-size Z of so-called resistive element pattern 5 is straight when for example referring to the profile of resistive element pattern 5 for circle
Footpath, the long side when profile for referring to resistive element pattern 5 is rectangle.
Here, in the relation of full-size Z [mm] and electric linearity L [%], Z≤4.0 and Z × L ＜ 10 are met.
Therefore, because Z≤4.0 are met, therefore, it is possible to minimize rotating type adjustable resistor 1.Due to meeting Z × L ＜ 10, therefore energy
Enough improve electric linearity.Therefore, it is possible to realize that miniaturization and high precision int get both.On the other hand, if meeting Z ＞ 4.0,
Then rotating type adjustable resistor 1 becomes maximization, if meeting Z × L >=10, and electric linearity deteriorates.
As shown in figure 3, resistive element pattern 5 and collector pattern 6 in the 1st direction X on insulated substrate 2 by carrying out silk
Wire mark brush and constitute.So-called 1st direction X, refers to print direction, although followed by narration, but refers to pass through on wire mesh membrane
Scraper conveys the direction of paste.
Generally, in resistive element pattern 5, the length in the direction orthogonal with the 1st direction X is easy for the thickness of the best part
Deviation.Therefore, present inventor is conceived to the part, if finding, the deviation of the thickness of the part is in prescribed limit, electricity
The deviation of the overall thickness of resistance body pattern 5 diminishes.
Specifically, resistive element pattern 5 has：The part (hereinafter referred to as top 55) in the 1st direction X downstream and the
The part (hereinafter referred to as sidepiece 56) of 1 direction X center side.Top 55 is located at orthogonal with the 1st direction X in resistive element pattern 5
The length the best part side in direction.Although followed by narration, wire mesh membrane has and the corresponding hole of resistive element pattern 5
Portion.The size of opening corresponding to the top 55 of hole portion is bigger than the size of the opening corresponding to the sidepiece 56 of hole portion.Therefore, with
Past, in the part corresponding to the top 55 of hole portion and the part corresponding to the sidepiece 56 of hole portion, the intrusion based on scraper is produced
Difference.Especially, the part corresponding to the top 55 of the hole portion of wire mesh membrane is significantly pressed into, and the deviation of the thickness at top 55 becomes
Greatly.Therefore, present inventor is conceived to the thickness at top 55, if finding, the deviation of the thickness at top 55 is in prescribed limit,
Then the deviation of the overall thickness of resistive element pattern 5 diminishes.
In a word, will be parallel with the 1st direction X and set by rotary shaft C straight line from the direction along rotary shaft C
For the 1st straight line M1.By the portion that the length for being located at direction orthogonal with the 1st direction X in resistive element pattern 5 on the 1st straight line M1 is maximum
The central point of the width (width at top 55) of point side is set to midpoint M0.So-called resistive element pattern 5 with the 1st direction X just
The maximum length in the direction of friendship, refers to orthogonal with the 1st straight line M1 in the 1st straight line M1 and the intersection point of the inner circumferential of resistive element pattern 5
Length D at position.By by midpoint M0 and the straight line orthogonal with the 1st straight line M1 is set to the 2nd straight line M2.In the 2nd straight line M2
On resistive element pattern 5 section, as shown in fig. 6, the thickness along the central portion in the 2nd straight line M2 direction is being set into t1,
When maximum film thickness is set into t2,1.0≤(t2/t1) ＜ 1.2 are met.Because the upper surface of resistive element pattern 5 is concave surface, therefore most
Big thickness t2 is the thickness of the end along the 2nd straight line M2 direction.In addition, the sidepiece 56 for resistive element pattern 5 is also same
Sample.
Therefore, because 1.0≤(t2/t1) ＜ 1.2 are met, therefore the deviation of the thickness of resistive element pattern 5 diminishes, Neng Gouti
High electrically linearity.Therefore, in small-sized rotating type adjustable resistor 1, high precision int can also be realized.On the other hand,
If meeting 1.2≤(t2/t1), electric linearity deteriorates.
Further, since resistive element pattern 5 is constituted by carrying out silk-screen printing on insulated substrate 2, therefore using most honest and clean
Valency and efficient silk-screen printing, can realize low cost.Further, since resistive element pattern 5 and collector pattern 6 are by identical
Material is constituted, therefore, it is possible to realize low cost.
Next, the manufacture method to rotating type adjustable resistor 1 is illustrated.
First, as shown in Figure 7 A, wire mesh membrane 8 is configured at spaced intervals on insulated substrate 2.Wire mesh membrane is this will be referred to as to match somebody with somebody
Put process.Wire mesh membrane 8 has hole portion 81 corresponding with resistive element pattern 5 and collector pattern 6.Emulsion is installed in wire mesh membrane 8
82, emulsion 82 will keep certain interval between wire mesh membrane 8 and insulated substrate 2.Emulsion 82 is for example made up of resin.The quilt of emulsion 82
It is configured at around hole portion 81.
Then, paste P is loaded on wire mesh membrane 8.It this will be referred to as paste mounting process.Paste P be resistive element pattern 5 and
The material of collector pattern 6.
Then, as shown in Figure 7 B, wire mesh membrane 8 is extruded to the side of insulated substrate 2 (the 2nd direction Y) by scraper 9, together
When paste P conveyed on the 1st direction X on wire mesh membrane 8, paste P is extruded from the hole portion 81 of wire mesh membrane 8.Then, such as Fig. 7 C
It is shown, by the paste P extruded from hole portion 81, so as to form resistive element pattern 5 and collector pattern 6 on insulated substrate 2.
It this will be referred to as pattern formation process.Then, paste P is heating and curing, to manufacture rotating type adjustable resistor 1.
In pattern formation process, as shown in Figure 8 A, extruded by scraper 9 on the 2nd direction Y to cause wire mesh membrane 8
Contacted with insulated substrate 2, and as shown in Figure 8 B, resistive element pattern 5 is formed on insulated substrate 2.It is right in Fig. 8 A and Fig. 8 B
The top 55 of resistive element pattern 5 is illustrated, but is also same for collector pattern 6.So, by being fully pressed into silk
Nethike embrane 8, so as to the opening of the hole portion 81 of wire mesh membrane 8 independently from the size, be printed with the thickness t3 of wire mesh membrane 8, on top
Portion 55 can obtain substantially certain thickness t1, t2.Generally, in silk-screen printing, wire mesh membrane 8 is made not contacted with insulated substrate 2.
But, present inventor is had found by making wire mesh membrane 8 be contacted with insulated substrate 2, can suppress the deviation of thickness.
Sidepiece 56 for resistive element pattern 5 is also same.In other words, as shown in Figure 9 A, by scraper 9 the 2nd
Extruded with so that wire mesh membrane 8 is contacted with insulated substrate 2, and as shown in Figure 9 B, formed on insulated substrate 2 on the Y of direction
Resistive element pattern 5.So, by being fully pressed into wire mesh membrane 8, so as to be printed with the thickness t3 of wire mesh membrane 8, in sidepiece 56
Substantially certain thickness t4, t5 can be obtained.The thickness t4 of the central portion of sidepiece 56 and the thickness t1 of the central portion at top 55 are big
Cause is identical, and the thickness t5 of the end of sidepiece 56 is roughly the same with the thickness t2 of the end at top 55.
Therefore, because being fully pressed into wire mesh membrane 8 by scraper 9 and to resistive element pattern 5 and collector pattern 6
Printed, therefore, it is possible to control resistive element pattern 5 and collector pattern 6 by the thickness of the hole portion 81 of wire mesh membrane 8
Thickness.Therefore, it is possible to the opening with the hole portion 81 of wire mesh membrane 8 independently from the size, resistive element pattern 5 and collector pattern are made
6 thickness is substantially certain.Therefore, the deviation of the thickness of resistive element pattern 5 diminishes, it is possible to increase electric linearity.Therefore, even if
In the case where manufacturing small-sized rotating type adjustable resistor 1, high precision int can be also realized.
So, in the present application, the hole portion 81 of wire mesh membrane 8 opening size at print direction (the 1st direction X)
In the case of upper change, particularly marked degree it can implement the printing with substantially certain thickness.
In addition, emulsion 82 inherently controls the effect of paste amount, but in the present application, with for disturbing insulation
The roughness of substrate 2 or the effect of fluctuating.The thickness needed for interference therefore, it is possible to which the thickness of emulsion 82 to be fallen on to roughness etc.
Degree.In wire mesh membrane 8, in order to improve ductility, coarse wire mesh membrane can be used.
Here, the electric linearity of resistive element pattern 5 is determined by multiple key factors, but overriding is resistive element pattern
The deviation of 5 thickness.The resistance value of resistive element pattern 5 and the sectional area of thickness are inversely proportional, and ((ρ is resistivity to R=ρ × L/S, and L is
Length, S is sectional area)), the deviation for how suppressing sectional area is smaller critically important.
In existing printing process, as shown in figs. 10 a and 10b, at the top 155 of resistive element pattern 105, such as scheme
Shown in 10A, because the opening of the hole portion 181 of wire mesh membrane 108 is larger, therefore the press-in quantitative change based on scraper is big.As a result, as schemed
Shown in 10B, the thickness t1 of central portion and the thickness t2 of end difference become big.
On the other hand, as seen in figs. 11a and 11b, in the sidepiece 156 of resistive element pattern 105, as shown in Figure 11 A, due to
The opening of the hole portion 181 of wire mesh membrane 108 is smaller, therefore the intrusion based on scraper diminishes.As a result, as shown in Figure 11 B, center
The thickness t4 in portion and the thickness t5 of end difference diminish.But, as shown in Figure 10 B and Figure 11 B, the film of the central portion at top 155
The thick t1 and thickness t4 of the central portion of sidepiece 156 difference becomes big.
Therefore, the thickness of resistive element pattern 105 produces deviation, and electric linearity deteriorates.So, in existing method,
Not by the thickness of the hole portion 181 of wire mesh membrane 108, and by the thickness of emulsion 182, to control paste P amount.
Next, the thickness at the top for resistive element pattern, is illustrated to of the invention and existing embodiment.
As illustrated in fig. 12, in the present invention, the thickness t1 and maximum film thickness t2 of central portion are roughly equal.On the other hand, such as
Shown in Figure 12 B, in the past, the thickness t1 and maximum film thickness t2 of central portion difference become big, about 2 μm.In figs. 12 a and 12b, it is horizontal
Axle represents the width (direction along the 2nd straight line M2 shown in Fig. 3) of the section at top, and the longitudinal axis represents thickness [μm].
Next, the thickness of the radial direction for resistive element pattern, is illustrated to of the invention with existing embodiment.
In fig. 13, transverse axis represents angle [°], and the longitudinal axis represents average film thickness [μm].Angle and the anglec of rotation illustrated in fig. 4
Degree is consistent.Average film thickness is the average value of the thickness of the radial direction of resistive element pattern.
As shown in figure 13, in the present invention, as shown by the solid line, the deviation of the thickness of the radial direction of resistive element pattern and angle without
Close smaller.On the other hand, in the past, as shown in phantom, the deviation of the thickness of the radial direction of resistive element pattern becomes according to angle
Greatly.In other words, the thickness of the thickness at top and sidepiece is poor larger.
Next, the embodiment to rotating type adjustable resistor 1 is illustrated.
Insulated substrate is by PPS resin (DIC：FZ-3600) constitute.1st~the 3rd terminal is made up of brass, be carried out Ni and
Ag plating.1st~the 3rd terminal, which is embedded into, is molded into insulated substrate.
The full-size Z of resistive element pattern isResistive element pattern and collector pattern are by phenolic aldehyde system resin
The middle material for having carbon black that immerses is constituted, and is screen printed in insulated substrate.Electrode pattern is made up of Ag pastes, be screen printed in
Insulated substrate.
Revolving part is by LCP resins (polyplastics：LAPEROS E130G) constitute.Sliding part is made up of albata, by reality
Apply Ni and Ag plating.Sliding part, which is embedded into, is molded into revolving part.Cap is made up of SUS304.
(the 2nd embodiment)
Figure 14 is the revolving part and the top view observed from below of sliding part for representing the 2nd embodiment of the present invention.
As shown in figure 14, revolving part 3A has：The main part 130 that is made up of resin and the metal parts for being fixed in main part 130
135.Sliding part 4A is locked metal parts 135, and is installed on revolving part 3A.The riveting that sliding part 4A passes through metal parts 135
Connect, be limited to metal parts 135.Metal parts 135 is fixed in main part 130 by insert molding.
If specifically being described, main part 130 has jut 31.The profile of main part 130 under vertical view be and slip
The roughly the same size of part 4A profile.Metal parts 135 is the metallic plate of banding.2 metal parts 135 are by being embedded in into
Type, is fixed in main part 130.The one end of metal parts 135 is embedded to main part 130, the other end of metal parts 135
Expose from main part 130 in portion.The other end of metal parts 135 is inserted into sliding part 4A hole portion 140 and riveted.Sliding part
4A is limited to metal parts 135 by the riveting of the other end of metal parts 135.
Next, being illustrated to the fixing means of from sliding part 4A to revolving part 3A.As shown in fig. 15, by sliding part 4A
It is arranged at revolving part 3A main part 130.Now, the other end of revolving part 3A metal parts 135 is inserted into sliding part
4A hole portion 140, by the somewhat bending of the other end of metal parts 135, metal parts 135 is temporarily snapped into by sliding part 4A.So
Afterwards, as shown in fig. 15b, by the other end bending of metal parts 135 and rivet, sliding part 4A is fixed on metal parts
135。
According to the 2nd embodiment, the metal parts 135 of main part 130 is fixed on because sliding part 4A is limited to,
And revolving part 3A is installed in, therefore the generation of sliding part 4A and revolving part 3A click based on reflux solder heat tail off.
Thus, resistive element figure can be obtained to the variation of resistive element pattern and the contact pressure of collector pattern in the absence of sliding part 4A
The contact with sliding part 4A stabilization of case and collector pattern.In addition, as the stronger part of durability.
On the other hand, in the jut for the main part that sliding part is inserted to revolving part, the jut that will be made up of resin
Deposition, in the case of making sliding part integrated with revolving part, due to reflux solder heat, jut may be melted.Now, sliding
Part and revolving part produce relaxation, and sliding part sends click.Thus, sliding part connecing to resistive element pattern and collector pattern
Press variation, it is impossible to obtain the contact with the stabilization of sliding part of resistive element pattern and collector pattern.
According to the 2nd embodiment, because sliding part 4A by the riveting of metal parts 135 is limited to metal portion
Part 135, therefore, it is possible to which sliding part 4A easily is installed on into revolving part 3A.
Further, since metal parts 135 is by insert molding, main part 130 is fixed in, therefore, it is possible to easily by gold
Category part 135 is fixed on main part 130.
(the 3rd embodiment)
Figure 16 is the revolving part and the top view observed from below of sliding part for representing the 3rd embodiment of the present invention.
Figure 17 is the side view for representing revolving part and sliding part.Figure 18 is to represent bowing for the state for decomposing revolving part and sliding part
View.In the 3rd embodiment, compared with the 2nd embodiment, the composition of metal parts is different.
As shown in Figure 16, Figure 17 and Figure 18, revolving part 3B has：The and of resinous main part 230 comprising jut 31
It is fixed in the metal parts 235 of main part 230.Sliding part 4B is limited to metal parts 235 and is installed in revolving part 3B.
Sliding part 4B is limited to metal parts 235 by the riveting of metal parts 235.Metal parts 235 passes through insert molding, quilt
It is fixed on main part 230.
If specifically being described, metal parts 235 is discoid metallic plate.The profile of metal parts 235 is overlooked
Lower is the size roughly the same with sliding part 4B profile.Metal parts 235 is fixed in main part 230 by insert molding.
Metal parts 235 has 2 jut 235a.The jut 235a of metal parts 235 is inserted into and is riveted on sliding part 4B's
Hole portion 240.The riveting for the jut 235a that sliding part 4B passes through metal parts 235, is limited to metal parts 235.
Next, being illustrated to the fixing means of from sliding part 4B to revolving part 3B.As shown in Figure 19 A, by sliding part 4B
It is arranged at revolving part 3B metal parts 235.Now, the jut 235a of revolving part 3B metal parts 235 is inserted into cunning
Moving part 4B hole portion 240.Then, as shown in Figure 19 B, the jut 235a of metal parts 235 is pressed and riveted, come
Sliding part 4B is fixed on metal parts 235.
According to the 3rd embodiment, play and the 2nd embodiment identical effect.Further, can by with
The metal parts 235 of size roughly the same sliding part 4B is fixed on main part 230, and metal parts 235 is consolidated to main part 230
It is fixed stable.Thus, fixing-stable from sliding part 4B to revolving part 3B.
In addition, the present invention is not limited to above-mentioned embodiment, without departing from the spirit and scope of the invention can
It is designed change.
In said embodiment, it is circular situation to illustrate the profile of resistive element pattern, but resistive element pattern is outer
Shape can also be oval, quadrangle or other polygonals.
In said embodiment, the size of the opening of the hole portion of wire mesh membrane changes on print direction (the 1st direction X),
But the size of the opening of the hole portion of wire mesh membrane can also be certain on print direction.
In said embodiment, the upper surface of insulated substrate is flat, and the upper surface of resistive element pattern is concave surface, but
Can also insulated substrate upper surface be convex surface, and resistive element pattern upper surface be tabular surface.
In said embodiment, at the top of resistive element pattern, 1.0≤(t2/t1) ＜ 1.2 are met, but it is also possible to
The sidepiece of resistive element pattern, meets 1.0≤(t5/t4) ＜ 1.2.
In said embodiment, Z≤4.0 and Z × L ＜ 10, and 1.0≤(t2/t1) ＜ 1.2 are met, but also may be used
To meet any one.
In said embodiment, resistive element pattern and collector pattern are constructed from the same material, but it is also possible to by not
Constituted with material.
In said embodiment, there is provided electrode pattern, but it is also possible to omit electrode pattern.
In said embodiment, print direction (the 1st direction) is set to 0 ° of direction shown in Fig. 4, but it is also possible to be set to+
90 ° of directions, -90 ° of directions.In this case, Fig. 3 sidepiece turns into top, and Fig. 3 top turns into sidepiece.In addition it is also possible to will
Print direction be set to the 1st direction in opposite direction, in this case, the upstream side of print direction is with the in resistive element pattern
The maximum side of the length in the orthogonal direction in 1 direction.
In the described 2nd, the 3rd embodiment, sliding part is locked to by metal portion by the riveting of metal parts
Part, but it is also possible to not by the riveting of metal parts, sliding part is locked to metal parts.In addition, by insert molding come
Metal parts is fixed on main part, but it is also possible to not by insert molding, metal parts is fixed on main part.
- symbol description-
1 rotating type adjustable resistor
2 insulated substrates
3rd, 3A, 3B revolving part
130th, 230 main part
135th, 235 metal parts
235a juts
4th, 4A, 4B sliding part
140th, 240 hole portion
5 resistive element patterns
55 tops (part of the maximum side of the length in the direction orthogonal with the 1st direction in resistive element pattern)
56 sidepieces
6 collector patterns
7 electrode patterns
8 wire mesh membranes
81 hole portions
9 scrapers
10 caps
11 the 1st terminals
11a exposes electrode
12 the 2nd terminals
12a exposes electrode
13 the 3rd terminals
13a exposes electrode
C rotary shafts
M0 midpoints
The straight lines of M1 the 1st
The straight lines of M2 the 2nd
P pastes
The directions of X the 1st
The directions of Y the 2nd
Claims (10)
1. a kind of rotating type adjustable resistor, possesses：
Insulated substrate；
Resistive element pattern and collector pattern, are arranged on the insulated substrate, and by mutually isolated configuration；
Revolving part, is revolvably installed on the insulated substrate；With
Sliding part, is installed in the revolving part and enables to rotate jointly with the revolving part, with the resistive element pattern
And the collector pattern sliding contact, the resistive element pattern and the collector pattern are turned on,
The effective full-size of variable resistor as the resistive element pattern is being set to Z, wherein unit is mm, will be electrically straight
When dimension is set to L [%], Z≤4.0 and Z × L ＜ 10 are met.
2. rotating type adjustable resistor according to claim 1, wherein,
The resistive element pattern and the collector pattern are configured by carrying out silk-screen printing on the insulated substrate.
3. a kind of rotating type adjustable resistor, possesses：
Insulated substrate；
Resistive element pattern and collector pattern, are arranged on the insulated substrate, and by mutually isolated configuration；
Revolving part, is revolvably installed on the insulated substrate；With
Sliding part, is installed in the revolving part and enables to rotate jointly with the revolving part, with the resistive element pattern
And the collector pattern sliding contact, the resistive element pattern and the collector pattern are turned on,
The resistive element pattern is configured by carrying out silk-screen printing on the 1st direction on the insulated substrate,
Pass through the resistive element pattern on the 1st straight line of rotary shaft parallel and by the revolving part with the 1st direction
In the direction orthogonal with the 1st direction the maximum side of length width midpoint and with the 1st line orthogonal
Section, t1 is being set to by the thickness of central portion, when maximum film thickness is set into t2, meets 1.0≤(t2/t1) ＜ 1.2.
4. rotating type adjustable resistor according to claim 3, wherein,
The effective full-size of variable resistor as the resistive element pattern is being set to Z, wherein unit is mm, will be electrically straight
When dimension is set to L [%], Z≤4.0 and Z × L ＜ 10 are met.
5. the rotating type adjustable resistor according to any one of Claims 1-4, wherein,
The resistive element pattern and the collector pattern are constructed from the same material.
6. the rotating type adjustable resistor according to any one of claim 1 to 5, wherein,
Have：
Expose electrode, be arranged in the insulated substrate, expose from the insulated substrate；With
Electrode pattern, is arranged on the insulated substrate, positioned at the resistive element pattern and it is described expose between electrode,
The resistive element pattern and the electrode that exposes are turned on via the electrode pattern.
7. the rotating type adjustable resistor according to any one of claim 1 to 6, wherein,
The revolving part has：
The main part being made up of resin；With
The metal parts of the main part is fixed in,
The sliding part is installed in the revolving part with being limited to the metal parts.
8. rotating type adjustable resistor according to claim 7, wherein,
The sliding part is limited to the metal parts by the riveting of the metal parts.
9. the rotating type adjustable resistor according to claim 7 or 8, wherein,
The metal parts is fixed in the main part by insert molding.
10. a kind of manufacture method of rotating type adjustable resistor, possesses：
Wire mesh membrane arrangement step, by the wire mesh membrane with the hole portion corresponding to resistive element pattern and collector pattern in insulation base
Configured at spaced intervals on plate；
Paste loads process, and paste is loaded on the wire mesh membrane；With
Pattern formation process, the wire mesh membrane is extruded by scraper and institute is delivered up in the 1st side on the wire mesh membrane
Paste is stated, thus the paste is extruded from the hole portion of the wire mesh membrane, the resistance is formed on the insulated substrate
Body pattern and the collector pattern,
In the pattern formation process, the wire mesh membrane is extruded by the scraper with cause the wire mesh membrane with it is described absolutely
Edge substrate is contacted, and forms on the insulated substrate resistive element pattern and the collector pattern.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-223466 | 2014-10-31 | ||
| JP2014223466 | 2014-10-31 | ||
| JP2015-073203 | 2015-03-31 | ||
| JP2015073203 | 2015-03-31 | ||
| PCT/JP2015/075800 WO2016067769A1 (en) | 2014-10-31 | 2015-09-11 | Rotation-type variable resistor and method for manufacturing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107077932A true CN107077932A (en) | 2017-08-18 |
Family
ID=55857115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580058296.5A Pending CN107077932A (en) | 2014-10-31 | 2015-09-11 | Rotating type adjustable resistor and its manufacture method |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US9916920B2 (en) |
| JP (1) | JPWO2016067769A1 (en) |
| CN (1) | CN107077932A (en) |
| WO (1) | WO2016067769A1 (en) |
Cited By (3)
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|---|---|---|---|---|
| CN110364322A (en) * | 2019-07-17 | 2019-10-22 | 东莞福哥电子有限公司 | A kind of production method of contact swept resistance piece |
| CN113454737A (en) * | 2019-03-25 | 2021-09-28 | 阿尔卑斯阿尔派株式会社 | Variable resistor |
| CN115362515A (en) * | 2020-03-30 | 2022-11-18 | 东京Cosmos电机株式会社 | Movable contact, variable resistor, and method for manufacturing movable contact |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116735930B (en) * | 2023-08-15 | 2023-10-24 | 江苏华鹏智能仪表科技股份有限公司 | Concentrator appurtenance |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2016067769A1 (en) | 2016-05-06 |
| US9916920B2 (en) | 2018-03-13 |
| US20170229220A1 (en) | 2017-08-10 |
| JPWO2016067769A1 (en) | 2017-07-27 |
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Application publication date: 20170818 |